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WO1999008801A1 - Couplage par fibre optique pour la commande des pulverisateurs agricoles electrostatiques - Google Patents

Couplage par fibre optique pour la commande des pulverisateurs agricoles electrostatiques Download PDF

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Publication number
WO1999008801A1
WO1999008801A1 PCT/US1998/017036 US9817036W WO9908801A1 WO 1999008801 A1 WO1999008801 A1 WO 1999008801A1 US 9817036 W US9817036 W US 9817036W WO 9908801 A1 WO9908801 A1 WO 9908801A1
Authority
WO
WIPO (PCT)
Prior art keywords
voltage side
low
fiber optic
signals
voltage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US1998/017036
Other languages
English (en)
Inventor
Dennis L. Trusty
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AGCO Corp
Original Assignee
AGCO Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by AGCO Corp filed Critical AGCO Corp
Publication of WO1999008801A1 publication Critical patent/WO1999008801A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
    • A01M7/0089—Regulating or controlling systems
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M21/00—Apparatus for the destruction of unwanted vegetation, e.g. weeds
    • A01M21/04—Apparatus for destruction by steam, chemicals, burning, or electricity
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
    • A01M7/0003—Atomisers or mist blowers
    • A01M7/0014—Field atomisers, e.g. orchard atomisers, self-propelled, drawn or tractor-mounted
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/16—Arrangements for supplying liquids or other fluent material
    • B05B5/1608—Arrangements for supplying liquids or other fluent material the liquid or other fluent material being electrically conductive
    • B05B5/1616—Arrangements for supplying liquids or other fluent material the liquid or other fluent material being electrically conductive and the arrangement comprising means for insulating a grounded material source from high voltage applied to the material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/0403—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material
    • B05B9/0423—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material for supplying liquid or other fluent material to several spraying apparatus

Definitions

  • the present invention relates to a system for reducing the paths for current leakage in an electrostatic spraying system for agricultural sprayers between the high-voltage components and the low-voltage, or grounded, components.
  • High-voltage spray guns for electrostatic paint spraying systems that have a self-contained high voltage supply right at the spray gun are known.
  • an electrostatic paint spraying system such as that shown in U.S. Patent No. 5,218,305
  • a large agricultural electrostatic field sprayer travels over the earth, which is at a very low potential, raising more complex problems than in a paint-spraying system.
  • the present invention relates to a system for providing a battery on a high-voltage side of an electrostatic paint sprayer for controlling electrical components without having electrical wires connected between the high and low-voltage components.
  • Light signals correlated to the control signals are carried by fiber optic cables.
  • the power supply (battery) for energizing controls on the high- voltage side, such as flow control valves and the like, is carried on the high-voltage side, and a charging system driven from the motor used to drive the pressurizing spray pump recharges the battery.
  • the control signals are carried through fiber optic cables, which can well be insulated to reduce current leakage.
  • the ability to recharge the battery on the high-voltage side permits operating components located on the high-voltage side without having a direct electrical connection from a battery on the low-voltage side to the high-voltage side. It also ensures that the battery that charges the components will remain fully charged for reliable and safe operation.
  • Figure 1 is a schematic view of a typical agricultural field sprayer used with the present invention
  • Figure 2 is a schematic view of a typical arrangement of a high-voltage platform used on a field sprayer
  • Figure 3 is a schematic representation of a control system of the present invention.
  • a self-propelled agricultural field sprayer is indicated generally at 10 and is mounted on a prime mover 11 that has suitable support wheels 12 for travel over the ground.
  • the prime mover and the components directly mounted thereon compose a low-voltage side 17 of the electrostatic field sprayer.
  • a frame assembly 14 is provided at the rear of the self-propelled vehicle to support a pair of spray booms that extend laterally from a center supply in opposite directions.
  • One such boom, shown at 16 has a lower boom support 16 suspended on insulating rods 16B to support a laterally-extending spray pipe 13 that has nozzle 13A for discharging an electrostatically charged liquid.
  • Additional insulating supports 15 can be used to cut down current leakage back to ground potential.
  • a frame 20 has arms 22 that support portions of a high-voltage side or section 34, including a spray generator assembly 26, which is at a high voltage potential, through insulator rods 30.
  • the sprayer system can include a center boom section 35 that is supported on insulating blocks 29 and 33 to the rear of high-voltage section 34.
  • the high-voltage section ' 34 can be supported as shown and includes a tank 48 which carries liquid to be charged.
  • a liquid supply system 47 provides the liquid spray material to the tank 48.
  • At the lower end of tank 48 there is support 41 holding a pump 44 that is driven by a hydraulic motor 42 from a hydraulic pressure source 37 on the prime mover 11, which is on the low-voltage side 17.
  • the liquid supply system for the spray material includes a suitable spray head 46, as is explained in U.S. Patent No. 5,363,799.
  • a high-voltage power supply 45 is used for providing a potential to the pump 44 so that charged liquid is provided through a line 49 to a valve block 50 that has lines 50A, 50B, and 50C leading to individual sections of the spray pipes, for example, the spray pipes 35 and 13.
  • the valves in block 50 are solenoid valves powered from a battery 54 that is mounted on the support 41 and provides power on the high-voltage side 34 to the solenoids in the valve block 50.
  • Battery 54 also provides electrical power to excite a float valve control 59 that is used for determining the level of liquid shown at 59A in supply tank 48.
  • the battery 54 is recharged with an alternator 57, which is driven by the hydraulic motor 42.
  • the motor 42, valves 50, alternator 56, and battery 54 are on the high-voltage side 34 of the field sprayer.
  • control signals from the low-voltage side 17 are provided in a control module 56 that is shown in Figure 1 in the operator's compartment of the prime mover 11, and these signals are carried by a fiber optic cable 53 which connects to a control module 58, shown schematically in Figure 2 and also in Figure 3.
  • a second fiber optic cable 55 is shown schematically and is used for transmitting light signals from control module 58 to control module 56.
  • a simple fiber optic cable will carry all of the signals in actual use.
  • the control modules 56 and 58 transmit and receive light signals to and from the fiber optic cables and convert the light signals from and into electrical signals on the respective high and low- voltage sides .
  • Individual solenoid operated control valves 50A, 50B, and 50C form left, center, and right sprayer boom shut-off valves and are operated with power from battery 54. Control signals are also provided to a pressure adjustment valve that is electrically operated, and a flow meter signal is provided from a flow meter 63.
  • the low-voltage side is represented at 17 in Figure 3, and the high-voltage side is represented at 34.
  • the fiber optic cables 53 and 55 receive and transmit control signals between the control modules 56 and 58 while the power for operating solenoid valves 50A, 50B, and 50C, as well as for energizing pressure adjustment valve 62 and the flow meter valve 63, are all powered by the battery 54 on the high-voltage side 34. There is no need for running electrical lines between the high- and low-voltage sides for these functions .
  • the flow valve control 55 is energized by the battery 54 through the control module 58.
  • the control modules 56 and 58 can be standard modules that convert fiber optic signals to electrical signals and vise versa as desired.
  • the control module 56 includes a series of push-button or lever controls, such as those for operating the left- hand spray valves indicated at 70, the center spray valves indicated at 72, or the right-hand spray valves indicated at 74.
  • a flow and pressure adjustment control 76 is also controlled by the operator and provides signals to the control module 56, carried by the fiber optic cable 53 to the control module 58 and then to the various components that are used.
  • the alternator 57 is driven directly from the motor using a direct drive shaft or similar coupling, and will provide a sufficient output to maintain the battery 54 fully charged in a normal service sequence, without needing to stop the unit and have it charged from a separate source.
  • the alternator output is controlled by a conventional voltage regulator. Any type of motor that is used for driving the pump 44 can be used for driving an alternator so that the battery can be mounted on the high-voltage side 34 without any electrical connecting wires or the like between the high and low-voltage sides for the electrical component.
  • the battery is selected to provide adequate power for operating the various valves, providing excitation for the flowmeter, and also providing excitation for the level control in the supply tank 48, which will be fed back through the control modules 58 and 56 to a supply valve 60, which will then provide flow from a source of liquid into the supply tank. This is normally done through a sprinkler head 61 shown in Figure 2.
  • the self-contained power unit on the high- voltage side thus, is operated by fiber optic cable signals which are relatively easily insulated and provides for excellent isolation between the high and low-voltage sides.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Insects & Arthropods (AREA)
  • Pest Control & Pesticides (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Catching Or Destruction (AREA)

Abstract

La présente invention concerne un pulvérisateur pour grandes cultures (10) qui a recours à la pulvérisation de liquide électrostatiquement chargé pour le traitement des surfaces agricoles. A cet effet, on isole une partie haute tension (34) d'une partie basse tension (17) tenue à un potentiel sensiblement égal au potentiel de terre. Les composants haute tension sont principalement des électrovannes (50A, 50B, 50C) ainsi que d'autres composants (62, 63). Un moteur hydraulique (42) sert à entraîner une pompe de pressurisation du liquide (44) du côté haute tension (34) du pulvérisateur (10). Une batterie (54) assurant la mise en oeuvre des commandes électriques (58), des vannes (50A, 50B, 50C), et des autres composants (62, 63) est montée du côté haute tension (34) du système. Un alternateur (57), couplé au moteur hydraulique (42), assure la charge de la batterie (54). Il n'y a pas besoin de fils électriques entre les côtés haute tension et basse tension (17, 34) pour alimenter en électricité les électrovannes (50A, 50B, 50C). Les signaux de commande de mise en oeuvre des composants haute tension sont transmis par des câbles à fibres optiques (53, 55).
PCT/US1998/017036 1997-08-18 1998-08-17 Couplage par fibre optique pour la commande des pulverisateurs agricoles electrostatiques Ceased WO1999008801A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US91274197A 1997-08-18 1997-08-18
US08/912,741 1997-08-18

Publications (1)

Publication Number Publication Date
WO1999008801A1 true WO1999008801A1 (fr) 1999-02-25

Family

ID=25432370

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/017036 Ceased WO1999008801A1 (fr) 1997-08-18 1998-08-17 Couplage par fibre optique pour la commande des pulverisateurs agricoles electrostatiques

Country Status (1)

Country Link
WO (1) WO1999008801A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008037456A1 (fr) * 2006-09-27 2008-04-03 Dürr Systems GmbH Dispositif de pulvérisation électrostatique
CN101516523B (zh) * 2006-09-27 2013-03-06 杜尔系统有限责任公司 静电喷雾器装置
CN104068008A (zh) * 2014-07-15 2014-10-01 台州信溢农业机械有限公司 喷雾仿形架
CN104542540A (zh) * 2014-04-08 2015-04-29 新疆农垦科学院 一种超宽幅静电喷雾机
CN104798761A (zh) * 2015-04-17 2015-07-29 国家电网公司 电力设备围栏内清障除草机器人
CN105284764A (zh) * 2015-09-23 2016-02-03 常州机电职业技术学院 乘坐式插秧机用喷雾装置
CN107047511A (zh) * 2017-04-12 2017-08-18 柳州凡科技有限公司 一种用于农业治理的农药喷洒装置
WO2025045565A1 (fr) * 2023-08-28 2025-03-06 crop.zone GmbH Procédé de traitement de plantes

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4198781A (en) * 1978-08-03 1980-04-22 Lasco, Inc. Plant destruction utilizing electrically conductive liquid
EP0011991A1 (fr) * 1978-11-23 1980-06-11 E. Allman & Company Limited Perfectionnements relatifs à des dispositifs de commande à distance
US4530463A (en) * 1982-08-05 1985-07-23 Hiniker Company Control method and apparatus for liquid distributor
DE3438497A1 (de) * 1984-10-19 1986-04-24 Amazonen-Werke H. Dreyer Gmbh & Co Kg, 4507 Hasbergen Landmaschine
EP0203662A1 (fr) * 1985-05-30 1986-12-03 Multinorm B.V. Système de communication
US4715012A (en) * 1980-10-15 1987-12-22 Massey-Ferguson Services N.V. Electronic tractor control
JPS6411660A (en) * 1987-07-02 1989-01-17 Origin Electric Electrostatic coating device
EP0323811A2 (fr) * 1987-10-30 1989-07-12 MENBER'S S.p.A. Dispositif pour la transmission en série à distance par fil de commandes et/ou d'informations, en particulier entre des unités mobiles comme un tracteur et une remorque
US5073709A (en) * 1991-04-09 1991-12-17 Graco Inc. Electrostatic spray applicator with two-channel optical monitoring system

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4198781A (en) * 1978-08-03 1980-04-22 Lasco, Inc. Plant destruction utilizing electrically conductive liquid
EP0011991A1 (fr) * 1978-11-23 1980-06-11 E. Allman & Company Limited Perfectionnements relatifs à des dispositifs de commande à distance
US4715012A (en) * 1980-10-15 1987-12-22 Massey-Ferguson Services N.V. Electronic tractor control
US4530463A (en) * 1982-08-05 1985-07-23 Hiniker Company Control method and apparatus for liquid distributor
DE3438497A1 (de) * 1984-10-19 1986-04-24 Amazonen-Werke H. Dreyer Gmbh & Co Kg, 4507 Hasbergen Landmaschine
EP0203662A1 (fr) * 1985-05-30 1986-12-03 Multinorm B.V. Système de communication
JPS6411660A (en) * 1987-07-02 1989-01-17 Origin Electric Electrostatic coating device
EP0323811A2 (fr) * 1987-10-30 1989-07-12 MENBER'S S.p.A. Dispositif pour la transmission en série à distance par fil de commandes et/ou d'informations, en particulier entre des unités mobiles comme un tracteur et une remorque
US5073709A (en) * 1991-04-09 1991-12-17 Graco Inc. Electrostatic spray applicator with two-channel optical monitoring system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 013, no. 182 (C - 591) 27 April 1989 (1989-04-27) *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008037456A1 (fr) * 2006-09-27 2008-04-03 Dürr Systems GmbH Dispositif de pulvérisation électrostatique
RU2441709C2 (ru) * 2006-09-27 2012-02-10 Дюрр Системз Гмбх Электростатическое распылительное устройство
CN101516523B (zh) * 2006-09-27 2013-03-06 杜尔系统有限责任公司 静电喷雾器装置
US8485125B2 (en) 2006-09-27 2013-07-16 Dürr Systems GmbH Electrostatic spraying arrangement
CN104542540A (zh) * 2014-04-08 2015-04-29 新疆农垦科学院 一种超宽幅静电喷雾机
CN104068008A (zh) * 2014-07-15 2014-10-01 台州信溢农业机械有限公司 喷雾仿形架
CN104798761A (zh) * 2015-04-17 2015-07-29 国家电网公司 电力设备围栏内清障除草机器人
CN105284764A (zh) * 2015-09-23 2016-02-03 常州机电职业技术学院 乘坐式插秧机用喷雾装置
CN107047511A (zh) * 2017-04-12 2017-08-18 柳州凡科技有限公司 一种用于农业治理的农药喷洒装置
WO2025045565A1 (fr) * 2023-08-28 2025-03-06 crop.zone GmbH Procédé de traitement de plantes

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